Home / 117,198.72-161,740.80-66,908.16

Finding the Fourth Proportional to 117,198.72, 161,740.80 and 66,908.16

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Solution

The fourth proportional to 117,198.72, 161,740.80 and 66,908.16 is: 92,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,198.72 : 161,740.80 = 66,908.16 : x
  2. Step 2: Convert to fraction form
    117,198.72/161,740.80 = 66,908.16/x
  3. Step 3: Cross multiply
    117,198.72x = 161,740.80 × 66,908.16
  4. Step 4: Simplify right side
    117,198.72x = 10,821,779,324.93
  5. Step 5: Solve for x
    x = 10,821,779,324.93/117,198.72
  6. Step 6: Final answer
    x = 92,337.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.